DistUpgradeViewText crashes with cs_CZ language

[Jan]

Description: Ubuntu 18.04.6 LTS
Release: 18.04

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.45
ProcVersionSignature: Ubuntu 4.15.0-166.174-generic 4.15.18
Uname: Linux 4.15.0-166-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.27
Architecture: amd64
CrashDB: ubuntu
Date: Fri Jan 7 12:45:15 2022
InstallationDate: Installed on 2019-10-01 (829 days ago)
InstallationMedia: Ubuntu-Server 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2022-01-07 (0 days ago)
VarLogDistupgradeAptclonesystemstate.tar.gz:
 Error: command ['pkexec', 'cat', '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'] failed with exit code 127: polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie
 Error executing command as another user: Not authorized

 This incident has been reported.
VarLogDistupgradeLspcitxt:
 00:00.0 Host bridge [0600]: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (AGP disabled) [8086:7192] (rev 03)
 00:07.0 ISA bridge [0601]: Intel Corporation 82371AB/EB/MB PIIX4 ISA [8086:7110] (rev 01)
 00:07.1 IDE interface [0101]: Intel Corporation 82371AB/EB/MB PIIX4 IDE [8086:7111] (rev 01)
 00:07.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 02)
 00:08.0 VGA compatible controller [0300]: Microsoft Corporation Hyper-V virtual VGA [1414:5353]

[Brian Murray (brian-murray)]

It looks like something is going wrong with displaying a message in your LOCALE but I was unable to recreate this using 'LANG=cs_CZ do-release-upgrade'. Here's the traceback:

2022-01-07 12:44:56,444 ERROR not handled exception:
Traceback (most recent call last):
  File "/tmp/ubuntu-release-upgrader-v6g6c5h7/focal", line 8, in <module>
    sys.exit(main())
  File "/tmp/ubuntu-release-upgrader-v6g6c5h7/DistUpgrade/DistUpgradeMain.py", line 238, in main
    if app.run():
  File "/tmp/ubuntu-release-upgrader-v6g6c5h7/DistUpgrade/DistUpgradeController.py", line 2092, in run
    return self.fullUpgrade()
  File "/tmp/ubuntu-release-upgrader-v6g6c5h7/DistUpgrade/DistUpgradeController.py", line 1860, in fullUpgrade
    if not self.prepare():
  File "/tmp/ubuntu-release-upgrader-v6g6c5h7/DistUpgrade/DistUpgradeController.py", line 421, in prepare
    self._sshMagic()
  File "/tmp/ubuntu-release-upgrader-v6g6c5h7/DistUpgrade/DistUpgradeController.py", line 306, in _sshMagic
    "Do you want to continue?") % port)
  File "/tmp/ubuntu-release-upgrader-v6g6c5h7/DistUpgrade/DistUpgradeViewText.py", line 259, in askYesNoQuestion
    print(twrap(msg))
  File "/usr/lib/python3.6/encodings/iso8859_2.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode character '\u201e' in position 226: character maps to <undefined>

[Jan (janskoda)]

Thank you for your reply.
I have switched language to en_GB, made release upgrade and switched back to my locale and everything works good.